Genomic analysis reveals rich genetic variation and potential targets of selection during domestication of castor bean from perennial woody tree to annual semi-woody crop

doi:10.1002/pld3.173

CORC > 昆明植物研究所 > 中国科学院昆明植物研究所 > 资源植物与生物技术所级重点实验室

	Genomic analysis reveals rich genetic variation and potential targets of selection during domestication of castor bean from perennial woody tree to annual semi-woody crop
	Xu, Wei 4; Yang, Tianquan 3; Qiu, Lijun 4; Chapman, Mark A.1,5; Li, De-Zhu 3; Liu, Aizhong 2,4
刊名	PLANT DIRECT
	2019-10-01
卷号	3 期号:10 页码:16
关键词	castor bean domestication selection genetic variation seed storage lipids woody tree
DOI	10.1002/pld3.173
通讯作者	Liu, Aizhong(liuaizhong@mail.kib.ac.cn)
英文摘要	Relatively, little is known about the genetic variation of woody trees during domestication. Castor bean (Ricinus communis L. Euphorbiaceae) is a commercially important nonedible annual oilseed crop and differs from its wild progenitors that have a perennial woody habit. Although castor bean is one of the oldest cultivated crops, its domestication origin, genomic variation, and potential targets of selection underlying domestication traits remain unknown. Here, we performed a phylogenetic analysis, which suggests that the wild accessions were distinctively separated from the cultivated accessions. Genome sequencing of three accessions (one each wild, landrace, and cultivar) showed a large number of genetic variants between wild and cultivated castor bean (ZB306 or Hale), and relatively few variants between cultivar ZB306 and Hale. Comparative genome analysis revealed many candidate genes of selection and key pathways potentially involved in the transition from a perennial woody tree to annual crop. Interestingly, among 16 oil-related genes only three showed evidence of selection and the remainder showed low genetic variation at the population level, suggesting strong purifying selection in both the wild and domesticated gene pools. These results extend our understanding of the origin, genomic variation, and domestication, and provide a valuable resource for future gene-trait associations and castor bean breeding.
WOS研究方向	Plant Sciences
语种	英语
WOS记录号	WOS:000509902200004
内容类型	期刊论文
源URL	[http://ir.kib.ac.cn/handle/151853/70858]
专题	昆明植物研究所_资源植物与生物技术所级重点实验室
通讯作者	Liu, Aizhong
作者单位	1.Univ Southampton, Ctr Underutilised Crops, Southampton, Hants, England 2.Southwest Forestry Univ, Minist Educ, Key Lab Forest Resources Conservat & Utilizat Sou, Kunming, Yunnan, Peoples R China 3.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming, Yunnan, Peoples R China 4.Chinese Acad Sci, Dept Econ Plants & Biotechnol, Yunnan Key Lab Wild Plant Resources, Kunming Inst Bot, Kunming, Yunnan, Peoples R China 5.Univ Southampton, Biol Sci, Southampton, Hants, England
推荐引用方式 GB/T 7714	Xu, Wei,Yang, Tianquan,Qiu, Lijun,et al. Genomic analysis reveals rich genetic variation and potential targets of selection during domestication of castor bean from perennial woody tree to annual semi-woody crop[J]. PLANT DIRECT,2019,3(10):16.
APA	Xu, Wei,Yang, Tianquan,Qiu, Lijun,Chapman, Mark A.,Li, De-Zhu,&Liu, Aizhong.(2019).Genomic analysis reveals rich genetic variation and potential targets of selection during domestication of castor bean from perennial woody tree to annual semi-woody crop.PLANT DIRECT,3(10),16.
MLA	Xu, Wei,et al."Genomic analysis reveals rich genetic variation and potential targets of selection during domestication of castor bean from perennial woody tree to annual semi-woody crop".PLANT DIRECT 3.10(2019):16.